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Dylan484 · 11-05-2016, 07:49 AM

Could a cracked pcv hose cause the whistle? I noticed this crack when I installed my jb4 3 days ago. Now when I have the jb4 turned on I get a whistle, but not when it's turned off?

11-05-2016, 07:49 AM	#8
Dylan484 Private First Class 20 Rep 100 Posts Drives: 2011 335i N55 Join Date: Sep 2014 Location: Gerogia iTrader: (1)	Could a cracked pcv hose cause the whistle? I noticed this crack when I installed my jb4 3 days ago. Now when I have the jb4 turned on I get a whistle, but not when it's turned off?
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